[Arran]

 That chassis has a Wells Gardner look about it, very similar to some Ward's Airline sets, be careful about the length of the dial lamps by the way. With regard to the M.I.A rubber straps for that can containing the vibrator supply, maybe you could make some out of some lengths of old bicycle inner tube? Coronado was sold by Gamble-Skogmo I believe, Coronado sets are usually listed under G-S in the Rider Manuals.
Regards
Arran